Sinotruk Howo First Rear Axle Drive
Discover the high-performance Sinotruk Howo First rear axle drive, a critical component for power transmission and vehicle stability. As a leader in reliable Sinotruk Howo Parts, our first rear axle drive ensures optimal torque distribution and durability under the most demanding conditions. This comprehensive guide covers every essential designation, from the core assembly to individual seals and bearings.
Sinotruk Howo First rear axle drive – Complete Assembly
Complete Component Guide for Sinotruk Howo First rear axle drive
Main Reducer Assembly (First rear axle drive)
The Main Reducer Assembly is the heart of the Sinotruk Howo First rear axle drive. This precision-engineered unit houses the gear train that reduces rotational speed and multiplies torque from the propeller shaft. It ensures smooth power delivery to the axle shafts, directly impacting fuel efficiency and load-carrying capability.
Differential Assembly
The Differential Assembly within the Sinotruk Howo First rear axle drive allows the left and right wheels to rotate at different speeds when cornering. This smart mechanism prevents tire scrubbing and driveline binding, enhancing vehicle stability and tire longevity. Our differentials are forged from high-grade steel for maximum impact resistance.
Axle Housing Assembly
The Axle Housing Assembly forms the structural backbone of the Sinotruk Howo First rear axle drive. This robust casing protects all internal components from road debris, moisture, and extreme stress. Manufactured with seamless welding technology, it guarantees perfect alignment and long-term durability under heavy loads.
Wheel Hub Assembly
The Wheel Hub Assembly is the mounting point for wheels on the Sinotruk Howo First rear axle drive. It features high-precision tapered roller bearings that support radial and axial loads. The hub is machined to exact tolerances, ensuring smooth rotation and preventing vibration or wobble during highway driving.
Axle Shaft Assembly
Axle Shaft Assembly transmits torque from the differential to the wheel hubs. For the Sinotruk Howo First rear axle drive, these shafts are made of heat-treated alloy steel, providing exceptional torsional strength. Each shaft is dynamically balanced to eliminate vibration, ensuring quiet and efficient power transfer.
Brake Assembly
The Brake Assembly on the Sinotruk Howo First rear axle drive delivers reliable stopping power. It includes high-friction brake pads, durable calipers, and ventilated discs or drums. This system is designed for rapid heat dissipation, maintaining consistent braking performance even on long downhill grades.
Inter-axle Differential
The Inter-axle Differential is crucial for vehicles with multiple drive axles. When installed with the Sinotruk Howo First rear axle drive, it compensates for speed differences between the first and second rear axles. This prevents driveline wind-up and ensures all wheels pull together on slippery surfaces.
Output Shaft Assembly
The Output Shaft Assembly directs power from the inter-axle differential to the forward axle or auxiliary drive. In the Sinotruk Howo First rear axle drive, this component is built with heavy-duty splines and bearings to handle torque surges without failure, ensuring seamless power distribution.
Speed Sensor
The Speed Sensor monitors rotational speed of the Sinotruk Howo First rear axle drive output. This data is sent to the ECU and ABS systems, enabling precise traction control and anti-lock braking. Our sensors are sealed against moisture and magnetic interference for accurate readings.
Axle Shaft Oil Seal
The Axle Shaft Oil Seal prevents lubricant leakage from the wheel end of the Sinotruk Howo First rear axle drive. Made from high-temperature FKM rubber, it resists aging and abrasion. A proper seal keeps dirt out and oil in, extending bearing life and preventing costly axle damage.
Wheel Hub Oil Seal
The Wheel Hub Oil Seal works alongside the axle shaft seal to provide double protection. For the Sinotruk Howo First rear axle drive, this seal features a stainless steel garter spring that maintains constant lip pressure, ensuring zero leakage even during extreme wheel articulation or high-speed operation.
Hub Reducer Assembly
The Hub Reducer Assembly is a planetary gear set mounted inside the wheel hub. When equipped on a Sinotruk Howo First rear axle drive, it provides additional torque multiplication at the wheel end, ideal for off-highway or heavy-haul applications. This design reduces stress on the main differential and axle shafts.
Brake Pad
The Brake Pad is a friction material that clamps onto the brake disc. For the Sinotruk Howo First rear axle drive, we use ceramic-formulated pads that offer consistent friction, low dust, and quiet operation. They are designed to withstand high temperatures without fading, ensuring driver confidence.
Brake Caliper Assembly
The Brake Caliper Assembly houses the brake pads and pistons. On the Sinotruk Howo First rear axle drive, the caliper is a floating single-piston or fixed multi-piston design, providing even pad pressure. Its corrosion-resistant coating and rubber boot seals protect against road salt and dirt.
ABS Ring
The ABS Ring (tone ring) is a toothed wheel that works with the speed sensor. On the Sinotruk Howo First rear axle drive, it is pressed onto the axle shaft or hub. As it rotates, the sensor reads each tooth passage, generating a signal for the ABS computer to modulate brake pressure and prevent wheel lockup.
Brake Drum
The Brake Drum is a cast-iron component that rotates with the wheel. In drum-brake versions of the Sinotruk Howo First rear axle drive, brake shoes press against the drum’s inner surface. The drum’s ventilation ribs improve cooling, while its balanced design eliminates vibrations during braking.
Brake Lining & Shoe
The Brake Lining & Shoe assembly consists of a metal shoe with friction material bonded or riveted to it. For the Sinotruk Howo First rear axle drive, these linings are asbestos-free and made of high-density composite, offering long wear life and stable friction coefficient, even when wet or hot.
Brake Adjuster Assembly
The Brake Adjuster Assembly automatically maintains the correct clearance between the brake lining and drum. On the Sinotruk Howo First rear axle drive, this self-adjusting mechanism compensates for lining wear over time, ensuring consistent pedal feel and reducing the need for manual adjustments.
Brake Camshaft
The Brake Camshaft converts the linear push from the brake chamber into a rotational force that expands the brake shoes. For the Sinotruk Howo First rear axle drive, the camshaft is induction-hardened to resist wear, and its splines are precision-cut for positive engagement with the adjuster.
Brake Chamber Assembly
The Brake Chamber Assembly is the pneumatic actuator. When air pressure is applied, it pushes a rod to rotate the brake camshaft. On the Sinotruk Howo First rear axle drive, these chambers are spring-loaded for emergency braking and parking, complying with international safety regulations.
Product Parameters of Sinotruk Howo First rear axle drive
| Number of part | Designation |
|---|---|
| AZ9118320010 | Main Reducer Assembly (First rear axle drive) |
| AZ9118320011 | Differential Assembly |
| AZ9118320012 | Axle Housing Assembly |
| AZ9118320013 | Wheel Hub Assembly |
| AZ9118320014 | Axle Shaft Assembly |
| AZ9118320015 | Brake Assembly |
| AZ9118320016 | Inter-axle Differential |
| AZ9118320017 | Output Shaft Assembly |
| AZ9118320018 | Speed Sensor |
| AZ9118320019 | Axle Shaft Oil Seal |
| AZ9118320020 | Wheel Hub Oil Seal |
| AZ9118320021 | Hub Reducer Assembly |
| AZ9118320022 | Brake Pad |
| AZ9118320023 | Brake Caliper Assembly |
| AZ9118320024 | ABS Ring |
| AZ9118320025 | Brake Drum |
| AZ9118320026 | Brake Lining & Shoe |
| AZ9118320027 | Brake Adjuster Assembly |
| AZ9118320028 | Brake Camshaft |
| AZ9118320029 | Brake Chamber Assembly |
Why Choose Our Sinotruk Howo First rear axle drive?
Our Sinotruk Howo First rear axle drive is manufactured under strict ISO quality standards. Every component, from the Main Reducer Assembly to the Brake Chamber Assembly, is tested for durability, ensuring consistent performance in extreme climates and rough terrains.
We stock genuine Sinotruk Howo First rear axle drive assemblies with full traceability. Our supply chain ensures fast delivery of critical parts like the Differential Assembly, Axle Shaft Assembly, and Wheel Hub Assembly, minimizing vehicle downtime for fleet operators.
Direct sourcing allows us to offer competitive pricing on all Sinotruk Howo First rear axle drive components. You get original quality without paying dealership premiums, whether you need a single Brake Pad or a complete Axle Housing Assembly.
Our technical team provides expert support for identifying the correct Sinotruk Howo First rear axle drive variant. We assist with torque specifications, installation guidance, and cross-referencing part numbers, ensuring you get the right fit every time.
